<!doctype=html>
<title>html5 web</title>
<meta charset="utf-8"/>
<header style="width:auto; height:50px;background-color:red">
    <p>one</p>
</header>
<section>
    <!--标题-->
    <h1>主要练习音视频的播放操作</h1>
    <!--标记某一段文字-->
    <mark>hello</mark>
    <!--t添加视频播放效果-->
    <p>let me add video</p>
    <video src="object/001.mp4" controls="controls">video</video>

    <br/><br/><br/>
    <div>点击播放古风版小苹果</div>
    <audio src="object/002.mp3" controls="controls">
        Your browser does not support the audio tag.
    </audio>
</section>
<footer style="width: auto;text-align: center;height: 50em;background: yellow;">
    <p>footer</p>
</footer>